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<> (Not Equal To) (Transact-SQL)

SQL Server 2008

Compares two expressions (a comparison operator). When you compare nonnull expressions, the result is TRUE if the left operand is not equal to the right operand; otherwise, the result is FALSE. If either or both operands are NULL, see the topic SET ANSI_NULLS (Transact-SQL).

Topic link iconTransact-SQL Syntax Conventions

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expression<>expression
expression

Is any valid expression. Both expressions must have implicitly convertible data types. The conversion depends on the rules of data type precedence.

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Use the ANSI Standard
While != is equivalent in function, <> is in the SQL ANSI standard
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